Governor



c. R. HOUGHTON v GOVERNO R Filed May 5, 1923 //IIIII.'/////A Gas Suction Main lNVENTOR ATTO'RNEY justable to obtain Patented Feb. 10, 1925.

. UNITED STATES PATENT OFFICE.

cant a. HOUGI-ITON, or ooNnEasvILLE, INDIANA, ASSIGNOR r GONNERSVILLE BLOWER COMPANY, OF CONNERSVILLE, INDIANA, A CORPORATION or INDIANA.

GOVERNOR.

Application filed May 5,

To all whom it may concern: Be it known that I, CARL R. HoUeHToN a citizen of the United States, residing at Connersville, in the county of Fayette and State of Indiana, have invented a new and useful Governor, of which the following is a specification.

My invention relates to improvements in governors for prime movers and particularly to pressure responsive governors therefor. v

' It is one of the objects of my invention to provide means for stabilizing the action of governors of the above type to prevent hunting. Another object of my invention is to provide means for controlling the prime mover of gas exhausters and the like, which means may be readily and easily adthe most desirable results.

.For the purpose of disclosing my invention I have illustrated one embodiment thereof in the accompanying drawings in which i Fig.1 is a side elevation of an exhauster and governor embodying my invention, some of the parts thereof being shown in section, and h V Fig. 2 is a central vertical section through the pilot valve which is operated by the pressure governor.

In the embodiment of the invention illustrated the exhauster is driven by the usual engine 11 or other prime mover and draws gas from the gas suction main 12 and discharges it into the main 13. which two mains are connected to the collecting mains of the oven batteries and to the mains of a gas handling plant. The steam for the engine is supplied through a pipe 14. and the supply of steam is controlled by a lever 15 which may be any control lever for any desired kind of engine control. by an arm 16 provided with a counterweight 17 and the arm 16 is connected to the piston rod 18 of a piston 19 movable vertically in the cylinder 20 so that when the piston 19 rises the arm 16 works the lever 15 to reduce the engines speed. and vice versa. The cylinder 20, together with its. piston 19 and the connection rod 18 and lever 16 constitute a pressure responsive device connected to the control member of the engine for controlling the steam supply thereto.

Thelever 15 is operable.

1923. Serial No. 636,920.

For safety I also providea ball governor 21 responsive to the engines speed but the ball governor isarranged to come into play only when the speed of the exhauster rises unduly high so that it plays no part in the regular controlling action and is merely a safety device.

The lower part of the cylinder 20 is connected to an air supply pipe 22 and to an air outlet pipe 23, both of which communicate with the cylinder 20 below the lowest point to which the piston 19 can move. The air supply pipe 22 is connected tothe outlet of a small blower 24 preferably a rotary positive pressure blower, which is driven in any suitable manner from. the exhauster 10 so that the speed of the blower and of the exhauster vary in proportion. As shown, the driving of the blower 24 is by an ordinary belt 25 but this is merely one illustration.

Connected to the air supply pipe 22 is a bleeder valve 26 which is operable by an arm 27 connected by a link 28 with the lever 16. The link 28 is connected to the lever 16 by a suitable bolt or pin adapted to pass through one of a series of openings 29 in the lever so that the link may be connected at one of a number of points along the length of the lever and the lower end of the link is likewise connected to the arm 27 this arm being provided with a series of holes 30. exhauster 10 increases, the speed of, and consequently the quantitv of air discharged by, the blower is pronortionatelv increased. The air outlet pipe 23 leads from the cylinder 20 to a pilot valve 31 which is shown in detail in Fig. 2. This pilotvalve is a continuous leakage valve, the amount of leakagedepending upon the position 01: the valve stem 32. The valve stem 32 projects through the end walls of a chamber 33 into which the pipe 23 leads and the stem is provided at such end walls with cut away portions 34. which allow the es cape of airfrom the chamber 83 at a rate depending upon the position of the stem 32 The cut away portions 3 1 are so arranged that a balance of the leakage air through the two end walls is obtained and the stem thereby maintained in av balanced condition. In addition to the pilot valve 31 I provide in thepipe 23, a hand trolled leakage valve 35 which {may-be ma- As the speed of the connipulated to provide for a constantlealnage from. thepipe 23 independent t thevalve The ste1n32 of the pilot valveis connecte'd by alink 36 to a lever 37' provided with are shaped ends' to get constant lengths of effective lever arms. 38 of the gasolneter hangs from one end of the lever 37 and a counterweight. from,

the other. The float 38 is vertically movahleas. a gasoineter fioat in an open topped waterfcontainer 39 of the ,g'a son' eterrv and: the pipeAO which connnunicatesiwith the suction main 12 opens beneaththe, float $38 so thatathe press ngs beneath such float is thatexisting within the suction main. It is thus seen thatthe container 39 together with thehfioat 38, constitute pressure responsive device ,responsiveto, pressure in. the

gas main forijcontrolling l theieakage o'tfpilot niste -f qa d mere fo i s; of h -a r t us. snpplied; to the cylinder escapes therefrom hr us il -ifilw mm] in et- M he amount escaping depending upon the position of the stem 32 of the pilot" valye. The air pressure beneath the pistonl9 raises such piston to a greater or less .,height and thus lllOYQSIllQ controllever more .orless. The moven'ient, oi.- the control lever affects; the valve .26 and as thelpiston movesupward the bleed-valve: gradually opens, to, permit, a. greater quantity ofthe air. to, escape and thereby stahilizethe action, of the governor.

Ifior any reasonthe speed of the exhauster increases asbecauseofia changein steam. nressure or of a change due to the. move mentof thefioa-t, 38 as hereinafter described, the speed :of the blower changes correspond ingly and the pressure beneath the piston 19 is correspondingly increased, This, increased, pressure raises. the, piston 19 and n oves the cont1QL1eve1-l5 in the, proper direction toiproduce slowing down of wthe, ens. gine until the pressure beneaththe piston is. the sameas it; was hetore .(though the piston may be in a different positionthanatA first) which return ofi the pressure beneath the piston to its'original-value does not. occur, until the speed of the blower 241, and :there fore the exhauster, is the sameas it was be fore. This results in constant speed. con-v e vh ngi and Pre n a je ti nahle, ing. nd 1 untins If h quant ty of gas supplied througlnthegas suction main 2;. ha ses, e.v P FQ SUI in aidmain. hanges, q resiwndi glyr a d he .ge om ter float. 3$,;rises;.or falls, This moven ent-of the float -38 ;moves,the stem 32 0f the valve 1 :.tQ- allow 1 101321 01; less ,a-in tor-1 e ess-at the pilotvalve and such change in the air leakage produces a downward" or upward moyernent of the piston 19 to operate the roll rs 15 t0 sr ase .1 de re se he t p ly ndilmsm k t amus l0 and blower'2et' run at a greater or less speed to correct for this difference in air leakage and thus to take care of the change in. quantity oiigas supplied through the gas suction main 12.

The float 38 is. preteral'gly proyided with a nearly, closed bottoin l so, that the, water may p ass into, or out of, the I float only at a slow rate, d This makes the movement of-the float relatively, sluggish and dead beat,- and' assists inpreventing; any huntingor surging action. By providing the valve-,35La1nenabled to supplement theair. leakage-through theupi lot valve. In case the, governing action, above described, ton any reason;' and the speed of the engine and exhausten lflSQSJULCl-llly, the ball-governor; comes; into p i rd Pre nts, he ngin -iron nni g.

away.

I claim asimy inyentionz;

I Qmhina Qn, p m ,19v ',k --.ai relate d rcnihe e y, contro 1 6mm; or controllingv the supply of, energy. to saidprime mover, a. pressure responsiye; device connected to said control member to operate, it, a pump the speed, of which is variedday the variation in the speed of-the.driven app at s nd u-nP1y ns-flu e e P es responsive device and means caused. toopra eby the op at nn of aid P e sure vice for hleeding the fluidsuppliedto said: pressure responsivedevice in, proportion to the movement thereof.

2.; In eomhinatiolna priine n over, an apparatus driven thereby, a, control member tor controlling the supply of eneigy to 'aid prime .mover, a pressure, responsive device connected to 1 said contrOl; member, to operate it, a pump arranged, to, operate at a, speed 1 r perfiionat o t atof the riven appar u nd prly nsifiuid; to sa d p e ure POH: siveedevice a bleedyalyeforsaid fluid and mean or n r asingly one ingsai valve s said pressure responsivedevice.Inoves to decrease the supply-of; ener y to the prime mover.

In colnhination a prime mover, an ap; paratus driven thereby a. control member controlling the supply of energy to said prime moyeiga cylinder, zn piston operating here nn onsente to the ont-r 11 memb r to ope ate it, I a pump ,the ,spcedpt. which is varied by, the variation in: the, speed ot the drivenapparatus and supplying.flzuid, to said y inden. ede v lv s e v ai y ind and a connection between said valvelan d pisn 1 0'Q1 Q"fllYQ prop r i n t ly to he-mov m n efesaiipistoni 4,111 combination, a priine moyer, an ap paratus driven hereby accntrclmember for controlling the energy supplied to said prime mover, a pressure responsive device connected to said control member to operate it, a pump arranged to operate at a speed proportional to that of the driven apparatus and supplying fluid to said pressure responsive device, means for bleeding the fluid supplied to said pressure responsive device in proportion to the movement thereof and a governor operated leakage valve connected to said pressure responsive device.

5. In combination, a prime mover, an apparatus driven thereby, a control member for controlling the energy supplied to said prime mover, a pressure responsive device connected to said control member tooperate it, a pump arranged to be driven at a speed proportional to the speed of the driven apparatus and supplying fluid to said pressure responsive device, means for bleeding the fluid supplied to said pressure responsive device in proportion to the movement thereof, a leakage valve connected to said pressure responsive device and a second pressure responsive device for controlling said leakage valve.

6. In combination, a prime mover, an apparatus driven thereby, a control member for controlling the supply of energy to said prime mover, a pressure responsive device connected to said control member to operate it. a pump arranged to operate at aspeed proportional to that of the driven apparatus and supplying fluid to the pressure responsive device, means for bleeding the fluid supply to said pressure responsive device in proportion to the movement thereof, a leakage valve connected to said pressure responsive device, a second pressure responsive device controlling said leakage valve and a manually controlled leakage valve connected to said first mentioned pressure responsive device.

7 In combination, an exhauster drawing gas from the gas suction main and discharging it into the discharge main of a gas plant, an engine for operating said exhauster, a control member for controlling the supply of energy to said engine, a pressure responsive device connected to said control member to operate it, a pump arranged to operate at a speed proportional to that of the exhauster and supplying fluid to said pressure responsive device, a bleeder valve for said pressure responsive device and means for increasingly opening said bleeder valve in proportion to the movement of said pressure responsive device to decrease the energy supplied to the engine, a leakage valve connected to said pressure responsive device and a second pressure responsive device responsive to the pressure in said gas suction main and controlling said leakage valve.

8. In combination, a prime mover, an apparatus driven thereby, a control member ,for controlling the supply of energy to said prime mover, a pressure responsive device connected to said control member to operate it, a pump driven at a speed proportional to the speed of the driven apparatus and supplying fluid to said pressure responsive device, means for bleeding the fluid supplied to said pressure responsive device in proportion to the movement thereof, and a manually operated leakage valve connected to said pressure responsive device for adjusting the speed of the rime mover.

In witness whereof I, ARL R. HOUGHTON, have hereunto set my hand at Connersville, Indiana, this th day of April, A. D., one thousand nine hundred and twenty three.

CARL R. HOUGHTON. 

